Electrolytes: An Introduction
Explore the fundamental concepts of electrolytes, their types, properties, and applications in this Grade 9 science worksheet.
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Electrolytes: An Introduction
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Read each question carefully and answer to the best of your ability. Show all your work for calculations.
1. What property allows electrolytes to conduct electricity?
Presence of free electrons
Formation of neutral molecules
Dissociation into ions
High melting point
2. Which of the following is a strong electrolyte?
Sugar solution
Distilled water
Sodium chloride solution
Ethanol
3. Substances that produce ions when dissolved in a solvent are called .
4. The process by which an ionic compound separates into its constituent ions in a solution is known as .
5. Weak electrolytes only partially in solution.
6. All ionic compounds are strong electrolytes.
True
False
7. The conductivity of an electrolyte solution increases with increasing concentration of ions.
True
False
8. Differentiate between strong and weak electrolytes, providing an example for each.
9. Explain why pure water does not conduct electricity, but tap water does.
Match each term on the left with its correct definition on the right.
10. Electrolyte
a. A substance that does not produce ions in solution
11. Non-electrolyte
b. A substance that conducts electricity when dissolved in water
12. Ionization
c. The process of forming ions from a neutral molecule
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